[RE-wrenches] under performing Enphase inverters

Mark Frye markf at berkeleysolar.com
Thu Nov 3 15:23:03 PDT 2011


I have a fleet of 43 - 190's and 39 - 380's.
 
To date I have replace 3 - 190's and 2 - 380's.
 
All have been identified by close review of the display data and variation
in performance relative to adjacent units.
 
Each has been replaced under warranty with a service fee reimbursement of
$150.
 
Mark Frye 
Berkeley Solar Electric Systems 
303 Redbud Way 
Nevada City,  CA 95959 
(530) 401-8024 
 <http://www.berkeleysolar.com/> www.berkeleysolar.com  
 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Marco
Mangelsdorf
Sent: Thursday, November 03, 2011 2:27 PM
To: 'RE-wrenches'
Subject: [RE-wrenches] under performing Enphase inverters



For the first time, several weeks ago, after 40-50 Enphase installs, we've
come across at least two M210s that we putting out consistently lower
outputs than their immediate neighbors.

 

We replaced the two mods first, which made no difference.  Then, in
consultation with Enphase, replaced the M210s.  After replacing them, the
power output was as it should be.

 

Now I've got another suspect system with several underperforming mods out of
(36).

 

Has anyone else had this experience?

 

Thanks,

marco

 

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